Pump.



PATBNTED MAR. 5; 1907.

J. P. MONTGOMERY.

PUMP.

APPLIQATION FILED JULY19,1905.

2 SHEETS-SHEET 14 .3,9 ooooo O Y i A (TM uen/fof, Jaz;MeSH/Montgomeryqlc UNITED STATES PATENT OFFICE;

JAMES P. MONTGOMERY, or

ONE-HUNDREDTHsTo e.

PUMP.

I No. e45,se5.

Specication of Letters Patent.

Patented March 5, 1907.

Application filed July 19. 1905. Serial No. 270.362.

To all whom it may concern,.-l

Be it known that I, JAMES P. MONTGOM- ERY, a citizen of the UnitedStates, residing at Wichita., in the county of Sedgwick and State ofKansas, have invented a new and useful Pump, of which the. following' isa specification.

The invention relates to improvements in pumps.

The object of the present invention is to improve the construction ofpumps and to provide a simple and com aratively inexpensive one designedparticu arly to be operated by a windmill or by hand and adapted torender the operation uniform and to prevent the jar and vibrationincident to the operation of an ordinary pump by a windmill.

A further object of the invention is to provide a pump of this characterhaving adjustable counterbalancing means adapted to partiallycounterbalance the weight of the pum or sucker rod in order that on theupward stroke it will be necessary only to lift a'v portion of theweight of the said rod and also to divide the weight, so that a portionoi' the same will be utilized for lifting the water and a portion forbalancing the operation of the pump to lessen the jar and vibration.

The invention also has for its object to provide a pump which will beeffective in lifting water on the downstroke and in which there will beno unnecessary lifting of the water on the 'upstroke, thereby reducingthe labor of operating the pump to a minimum.

Furthermore, the invention has for its object to provide a pump adaptedfor pumping either water or o1l and ca able of maintaining a constantagitation of) vent sand from settling inthe valve and c ogging the pump.

With these and other objects in view the invention yconsists in theconstruction and novel combination and arrangement of parts hereinafterfully described, illustrated in the accompanying drawings, and pointedout in the claims hereto appended, it being understood thatvariouschanges in the form, pro- I portion, size, and'minor details ofconstruction 'within the scope of the claims may be resorted t'o withoutde arting from the spirit or sacrificing any of tllie advantages of theinvention.

In the drawings, Figure 1 is an elevation, partly in section, of a pumpconstructed in l accordance with this invention.

and piercing the o of the ball-valve,

the liquid to re- Fig. 2 is a vertical sectional view of a portion ofthe same. Fig. 3 is an enlarged sectional view y' illustrating theconstruction of the cylinder and the hollow piston of the pump. Fig. 4is a detail sectional view illustrating the construction of the couplingfor connecting the lpump or sucker rod Withthe hollow piston.

ig. 5 is a detail perspective view of the horizontal bar which forms asupport for the adjustable fulcrum of the counterbalancing-lever. Fig. 6is a detail view of the adjustable fulcrnm. i

Like numerals of reference designate corresponding parts in all thegures of the drawings.

1 designates a pump-cylinder, receiving a hollow piston 2 and having alower interiorlythreaded end 3, which is engaged by an upperexteriorly-threaded end 4 of a valve-seat 5. The Valve-seat 5,?. whichconsists of a short tube, depends beltw the lower end of the cylinderand is provided at its upper end With a concave seat for the receptionof a ball-valve 6, and the upward kmovement of the latter is limited bya stop, which preferably consists of a transverse pin 7, located abovethe ball cylinder.' Any ot er suitable means may e employed for limitingthe upward movement which closes on the down-A stroke of the hollowpiston, as hereinafter more fully explained. Y

Thelpump-cylinder may be secured within a wellv casing or ipe S'byscrew-threads or any other suitab e means; but the extended portion ofthe tubular valve-seatis preferably provided with a shoulder 9 forengaging an elastic gasket 10 arran ed on the tubular ortion between thesai v ower metallic washer-11. The lower portion 12 of the tubularvalve-seat is provided with exterior threads for the reception of atubular shank or nut 13, which is interiorly threaded to engage thetubular valve-seat and which is' provided witha pluralit of strips 14,disposed substantially at rig tangles to each other and having bowedsides adapted to enf gage the interior of the well pipe or casing forholding thel shank or nut against rotation. The upper end of thepump-cylinder is provided with opposite notches 15, adapted to be positesides of the puni shoulder 9 and a..

engaged bya suitable tube' for rotating the pump-cylinder, and therotation of the latter is adapted to compress the inner portion of theelastic gasket, and thereby expand the outer portion and force the sameinto frictional contact with the well pipe or casing. By this means thepump-cylinder is securely locked within the well pipe or casing yand maybe arranged at any desired point in the same. This construction alsopermits the pump-cylinder to be readily loosenedv for removal oradjustment. The pump-cylinder is also preferably provided at its upperend with an interiorly-arranged annular groove adapted to receive asuitable packing 16 for engaging ,the hollow piston.

The hollow piston has an interi orly-threaded lower end 17 for thereception of a reduced eXteriorly-threaded portion 18 of a tubularvalve-seat 19, which receives a ball-valve 20, and the upward movementof the latter is limited by a transverse pin 21, which pierces theopposite sides of the hollow piston, or any other suitable form of stopmay be employed for this purpose. The upper portion of the hollow pistonis provided with outlet-openings 22, preferably consisting of circularapertures, as clearly illustrated in Fig'. 3 of the drawings. The upperend of the hollow piston receives a coupling member 23, consisting oftwo sides and a top connecting portion 24, which is provided with anenlarged opening 25 for the reception of a bolt 26. The bolt 26 engagesa similar reversely-arranged coupling member 27, which is secured to apump or sucker rod 28, a jam or lock nut 29 being referably interposedbetween the two coupling members to secure the bolt firmly to thecoupling member. The enlarged opening of the lower coupling memberpermits `the necessary lateral movement or play of the pump or suckerrod. The lower end of the pump or sucker rod is spaced slightly from theupper end of the hollow piston to facilitate the discharge or escape ofwater from the latter, and on the downstroke of the shoots upward, thevalve 6 being closed automatically and the valve 20 being similarly dersthe pump speci a o ened. On the up or ineffective stroke of t e pistonthe upper valve 20 closes, and the lower valve 6 opens to permit theentrance of water into the pump-cylinder. It will thus be seen that thereci rocation of the pump or sucker rod and the ollow piston produces aconstant agitation of the liquid, which will be found of great advantagewhere the liquid is laden with sand, as the agitation will prevent thesand from settling on the valve-seats and clogging or otherwiseinterfering with' the operation of the pump. This operation renlyadvantageous in oilproducing countries.

The pump or sucker rod and the hollow piston are of uniform diameter inorder to present no projecting portions or shoulders, so that there willbe no unnecessary lifting of water on the up'stroke, the only waterlifted piston the water being that contained within the hollow piston.This construction permits the pump or sucker rod to pass upward throughthe water without anymaterial resistance, and the pump is therebyadapted to be operated with the minimum amount of power. The upper end29a of the well pipe or casing is screwed'with.- in the lower end of apump barrel or casing 30, which is secured at its lower end upon asuitable platform or support 31 and is provided at a point intermediateof its ends with a discharge-spout 32. The pump or sucker rod extendsthrough the upper end of the pump barrel or casing, which is provided atthe top with a suitable packing 33 and a nut or stuffing-box 34. Apump-handle 35, which is fulcrumed on an arm v36 of the pump barrel orcasing, is connected with the upper portion 37 of the pump-rod. Thepumprod may be either tubular or solid and when constructed of tubularmetal is closed at its lower end, so that on the downstroke it willforce the body upward through the well-casing in the space between thesame and the pump or sucker rod. The weight of the pump or sucker rod isthereby utilized to raise the body. In order to avoid the jar andvibration of an ordinary pump by a windmill and to render the operationof the pump more uniform and also to enable the pump to be operated withless power, only a portion of the weight of the pump-rod is lifted onthe upstroke by the operating power. The weight of the pump is therebydivided, a portion being utilized to assist the operation of the pump inexpelling or raising the water and the other portion being util-` izedto produce a uniform operation of the pump. This is effected by means ofa counterbalancing-lever 38 and a weight 39. The upper portion 37 of thepump-rod is shaped into a har and is provided at intervals'withperforations, the upper end of the umphandle being connected with theportion 37 at an intermediate-point and the upper end of the saidportion 37 being designed to be connected with a windmill in the usualmanner.

The lever 38 is connected at its inner end by a pivot 40 with thepump-rod, which is provided with an enlargement for the reception of theinner end of the lever. The lever is pivoted at an intermediate point bya bolt 41 or by any suitable fastening device to the upper end of anadjustable fulcrum-bar 42, which is adjustably mounted at its lower endon a horizontal sup orting-bar 43. The ends of the fulcrumar 42 arebifurcated and embrace the sides of the lever and the supporting-bar 43.-The inner end of the supporting-bar 43 is bifurcated and is secured'bya bolt 44 or any suitable fastening device to a bracket 45, consistingof a web 0r iiange formed integral with the pump barrel -or casing andhaving a projecting portion IOO I 46, forming a shoulder f by dividingthe weight of the pump-rod a- Windmill or other operating power willperv is oscillated is interiorly threaded and extending be neath thelower edge of the supporting-bar 43, as clearly illustrated inFigs. land2 of the drawings. The outer end 47 of the supporting-bar 43 is`provided with a collar which embraces the upper end of a tube 48, andthe latter is arranged over a Well or casing 49, in which the weight 39operates. The weight 39 is connected by a ,rod 50 with the outer end ofthe lever 38, and when the lever b the reciprocation of the pump orsucker rody the weight will move up and down in the well or casing 49and partially counterbalance the pump or sucker rod. A weight of anydesired size may be employed, and by'moving the fulcrum-bar 42 inwardand outward the relative lengths of the inner and outer arms of thelever 38 may be varied to secure the desired leverage. By this means thecounterbalancing effect of the Weight may bevaried to adapt the pumptothe ch-aracter of windmill or other operating power with which the pumpis used and also to render the operation of the p'ump easy by hand. Theupper end of the pump-cylinder to receive a pair of threaded rings orsleeves 51a and 52, which are spacedapart to form a groove for the saidpacking 16. 52 also forms an interiorly-arranged shoulder, which isadapted to be engaged by a tool for extracting the pum -cylinden Inorder to prevent the tubular valve-seat 5,'which is threaded into thelower end of the pump-cylinder, from accidentally unscrewing wluleexpanding the elastic gasket, the valveseat l5 is further secured to thelower end of the pump-cylinder by a transverse pin 53', which piercesthe opposite walls ofithe valveseat and `the pump-casing,V as clearlyillustrated invFig. 3 of the drawin s. Any other suitable means may beemp oyed for preventing the valve-seat from accidentally unscrewing whenthe pump-cylinder is rotated for expanding or contracting the rubbergasket.

It will be seen that by making the pump or sucker rod effective on thedownstroke and form substantially the same work on each stroke of thepump-rod. The operation of the windmill .or other` machine is therebyrendered uniform and the jars and vibrations incident to the Ordinarwindmill and ump are avoided. This wil increase the life of both thepump and the Windmill. The adjustment of the fulcrum of the lever ableexactly the same amount of work to be performed `on each stroke of thepump-rod.

Havin thusfully ldescribed my invention, what I c aim as new, and desireto secure by Letters Patent, isy The inner or lower sleevel will en-I- 1. The combination with a pump having a l pump-rod, of a well orcasing spaced from the pump-rod, a tube extending upwardv from the wellor casing, a supporting-bar extending from the pump to the tube, afulcrum mounted on the supporting-bar, a lever connected to the pump-rodand secured at an intermediate point to the fulcrum, a weight operatingin the said well or casing, and connecting means extending through thetube from the weight to the lever. y

2. In a pump of the class described, the combination of a pump-casingprovided with a bracket having an extended portion forming a shoulder, apump-rod, a supporting-bar secured to the bracket and supported by theshoulder thereof, a fulcrum-bar mounted on the supporting-bar, acounterbalancing-lever mounted at an intermediate point on thefulcrum-bar and pump-rod, and a weight connected to the other arm of thelever.

In a pump of the class described, the combination of a pum -casingprovided with a bracket, a pum -rod a supporting-bar secured at. one ento and supporte by the bracket, a fulcrum adjustably mounted on thesupporting-bar, a lever mounted at an intermediate point on `the fulcrumand connected at one arm with the pump-rod, a tube connected with theouter ortionof the sup "porting-bar, a weight, and) means extendingthrough the tube vfor connecting theweight with the lever.

4. In a pump of the class described, the combination with a well tube orcasing, a pump-cylinder havinga valve, a hollow pis ton'operating in thepump-cylinder and also provided with a valve and having a wateroutle'tabove the cylinder, a i nected with the hollow piston andv spaced fromthe well tube or casmg, said ump-rod being closed at the lower end and?being of uniform diameter with' the piston, and means for operating thepump-rod.

combination of a well tube or casing, a pump'- .cylinder secured withinthe well'tube or cas- 'ating in the pum -cylinder and, provided above,the cylinder, a diameter with the ho low piston' and connectedtherewith, said pump-rod being closed to the passage of water, in thelatter.

In testimony that I claim the foregoing as my own I have hereto aiiixedmy signature in the presence of two witnesses.

JAMES P. MONTGOMERY.

Witnesses: y JOHN H. Sieenas, BLANCHE J. KALDENBACK.

connected at one arm with the loc In a pump of the class described, thel IIO mg and having a valve, a hollow piston o erwith a-valve and a sohaving a water-outlet I ump-rod of uniform fr 1 c and means for operat-

